Large Eddy Simulation

  • Joseph Mathew Indian Institute of Science, Bangalore
Keywords: Computational fluid dynamics, large eddy simulation, turbulent flow, subgrid modelling, dynamics smagorinsky model, approximate deconvolution model


Large eddy simulation (LES) is an emerging technique for obtaining an approximation to turbulent flow fields. It is an improvement over the widely prevalent practice of obtaining means of turbulent flows when the flow has large scale, low frequency, unsteadiness. An introduction to the method, its general formulation, and the more common modelling for flows without reaction, is discussed. Some attempts at extension to flows with combustion have been made. Examples from present work for flows with and without combustion are given. The final example of the LES of the combustor of a helicopter engine illustrates the state-of-the-art in application of the technique.

Defence Science Journal, 2010, 60(6), pp.598-605, DOI:

Author Biography

Joseph Mathew, Indian Institute of Science, Bangalore

Dr Joseph Mathew is a Professor in the Dept of Aerospace Engineering at the Indian Institute of Science, Bengaluru. He obtained his BTech (Mechanical Engineering) in 1984 from IIT Madras, MS (Mechanical Engineering) in 1986 from the University of Missouri-Rolla, and PhD in 1990 from the Massachusetts Institute of Technology in the area of Fluid Mechanics and Wave propagation. After a post-doctoral position at the Institute for Computational Mechanics in Propulsion, NASA Lewis Research Centre (1990-92) and as a Fellow at the National Aerospace Laboratories, Bengaluru (1992-1995), he joined IISc, Bengaluru as an Assistant Professor in 1995. He has been a Visiting Professor at the Technische Universitaet Muenchen, Germany and a Senior Research Associate at the Air Force Research Laboratory, Dayton, Ohio. His research interests are in turbulent flows, its mechanisms and computation, especially DNS and LES.

How to Cite
Mathew, J. (2010). Large Eddy Simulation. Defence Science Journal, 60(6), 598-605.
Research Papers